桑园生草对土壤养分、微生物及桑葚品质的影响

doi:10.3969/j.issn.1000-1565.2017.03.008

摘要/Abstract

摘要： 以2、4和6 a毛叶苕子(Vicia villosa)及自然生草为处理,传统清耕为对照,研究生草对桑园土壤微生物数量、养分含量及果实品质的影响.结果表明:与对照相比,人工种草和自然生草的土壤有机质、全氮、全磷、全钾含量显著提高,其中毛叶苕子6 a的土壤有机质、全氮和全钾升幅最高,分别提升了222.6%、132.3%和19.0%,毛叶苕子6 a的碱解氮、速效磷和速效钾含量比对照分别提高了46.7%、46.3% 和19.2%,而毛叶苕子2 a速效磷和速效钾含量低于对照;毛叶苕子6 a的细菌、真菌和放线菌数量最多,比对照分别提高了86.8%、151.7%和168.4%;毛叶苕子6 a和自然生草6 a的可溶性固形物含量分别比对照提高了55.8%和17.0%,还原糖含量分别提高了42.9%和 8.5%,总酸含量分别下降了18.7%和14.1%,毛叶苕子能显著提高桑园土壤养分含量和微生物数量,改善桑葚鲜食品质.

关键词: 自然生草, 毛叶苕子, 桑葚, 品质

Abstract: Using mulberry field as research subject,the variation of soil nutrient,microbial amount and fruit quality were studied under different conditions with 2,4,6 a Hairy Vetch and natural grass,respectively.The results showed that all of treatments could increase the contents of organic matter,soil total N,total P,total K(P<0.05),compared with control.The contents of organic matter,soil total N,total K in 6 a hairy vetch increased by 222.6%,132.3% and 19.0%.Respectively the contents of available P and available K in soil with 2 a Hairy Vetch were lower than that of the control while increased significantly by 46.7%,46.3% and 19.2% in soil with 6 a hairy vetch,compared with the control.The bacteria,fungi and actinomycetes quantity in soil with Hairy Vetch 6 a increased by 86.8%,151.7% and 168.4%,respectively.The soluble solids content of mulberry fruit with Hairy Vetch 6 a and natural grasses 6 a increased by 55.8% and 17.0%,respectively,reducing sugar of mulberry fruit increased separately by 42.9% and 8.5%.However,total acids decreased by 18.7% and 14.1%,respectively.Inter-row planting Hairy Vetch could increased the soil fertility,enhance soil microbiology quantity and improve fruit fresh quality of mulberry,- with year increasing.

Key words: natural grasses, hairy vetch, mulberry fruit, quality

中图分类号:

庞建光,朱铮,武龙. 桑园生草对土壤养分、微生物及桑葚品质的影响[J]. 河北大学学报(自然科学版), 2017, 37(3): 267-273.

PANG Jianguang,ZHU Zheng,WU Long. Effects of inter-row planting grasses on soil nutrient, microbial quantity and fruit quality in mulberry field[J]. Journal of Hebei University (Natural Science Edition), 2017, 37(3): 267-273.

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